Title :
Electronically Tunable Microwave Bandstop Filters
Author :
Hunter, I.C. ; Rhodes, John David
Abstract :
The design procedures for varactor tuned bandstop filters are presented. A novel circuit technique for realizing bandstop filters with a symmetrical frequency response is described and explicit design formulas are presented. The physical design and experimental performance of a three cavity varactor tuned bandstop filter tunable around 4 GHz is presented. Experimental results are substantiated with computer analysis which includes the effects of varactor resistance.
Keywords :
Band pass filters; Circuit optimization; Frequency response; Microwave filters; Microwave integrated circuits; Resonator filters; Stripline; Tunable circuits and devices; Tuning; Varactors;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.1982.1131261
